Hello, Our unit has 5 quad-core machines, running Hadoop. We have a dedicated Jobtracker/Namenode. Each machine has 32GB ram. We have the option of buying an 8 core,128GB machine and the question is would this be useful as a Tasktracker?
A) It can certainly be used as the JobTracker and Namenode B) I also read the FairScheduler, and mapred.fairscheduler.loadmanager appears to allow the administrator allow more jobs to run on a given machine. Thus the new machine might be able to run double the number of maps and reduces. Otherwise, if FairScheduler is not an option(or I misunderstood), then adding the new machine to the cluster would only underutilize it. Are my inferences correct? Regards Saptarshi Guha
